FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

WHAT IS A FIREWALL IN NETWORK SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If we want to close incoming traffic to all ports 1 through 1024, which of the following rules should be added to IPTABLES?
A
iptables-A INPUT-i eth0-p tcp ____ dport 1:1024-j DROP
B
iptables-A INPUT-p tcp ____ dport 1-1024-j DROP
C
iptables-A INPUT-o eth0-p udp ____ dport 1:1024-j REJECT
D
iptables-A INPUT-p udp ____ dport 1-1024-j REJECT
Explanation: 
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